Atomera Inc (ATOM) Institutional Ownership

Institutions by Trading Activity

30,456,716Shares Outstanding

11,165Shares held by institutions

$26,908Value of institutional holdings

0.07%Institutional ownership %

99.04%Shares Changed QoQ

6No. of institutional investors

According to SEC filings for the period ending December 2025, Atomera Inc (NASDAQ:ATOM) is held by 6 institutional firms.

These investors collectively held 0.1% of the company's total shares outstanding in December 2025, down from 34.8% in September 2025.
Quarterly data indicates a 99.04% shift in institutional share volume, and the annual owner count reflects a decrease of 91.89%.
A review of institutional activity for Atomera shows 4 of 6 filers increasing their positions, while 0 reduced their stake, and 2 remained unchanged.
The aggregate institutional position in Atomera now stands at 22.22K shares as of December 2025, after investors increased their holdings (up by 11.06K shares quarter on quarter which is down 8.55Mn shares year over year).
The top institutional stake in Atomera as of December 31, 2025 belongs to Gleason Group, Inc., which owns 10.50K shares, or 0.03% of the company.
Among the most significant buyers of Atomera during December 2025 were ACT WEALTH MANAGEMENT, LLC (10.00K), GAMMA Investing LLC (658), Fortitude Family Office, LLC (230), Lodestone Wealth Management LLC (170).
The top 6 institutional holders of Atomera for the quarter ending December 2025 included Gleason Group, Inc. (10.50K), ACT WEALTH MANAGEMENT, LLC (10.00K), ARMSTRONG ADVISORY GROUP, INC (665), GAMMA Investing LLC (658), Fortitude Family Office, LLC (230), Lodestone Wealth Management LLC (170).

11,165 Total Shares Held

Rows:

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	30 Sep, 2025	1,896,846	175,724	10.21%	$8,384,059.00
VANGUARD GROUP INC	30 Sep, 2025	1,635,938	15,450	0.95%	$7,230,846.00
Baird Financial Group, Inc.	30 Sep, 2025	975,661	-36,327	-3.59%	$4,312,422.00
GEODE CAPITAL MANAGEMENT, LLC	30 Sep, 2025	723,327	3,818	0.53%	$3,197,726.00
AVENIR CORP	30 Sep, 2025	604,385	29,619	5.15%	$2,671,382.00
HOLLENCREST CAPITAL MANAGEMENT	30 Sep, 2025	599,067	-34,096	-5.39%	$2,647,876.00
Quantum Private Wealth, LLC	30 Sep, 2025	527,108	38,800	7.95%	$2,329,819.00
STATE STREET CORP	30 Sep, 2025	446,578	111,285	33.19%	$1,973,875.00
NORTHERN TRUST CORP	30 Sep, 2025	293,534	-6,246	-2.08%	$1,297,420.00
SUSQUEHANNA INTERNATIONAL GROUP, LLP	30 Sep, 2025	275,283	-24,760	-8.25%	$1,216,751.00
Westside Investment Management, Inc.	30 Sep, 2025	187,952	24,625	15.08%	$830,749.00
CITADEL ADVISORS LLC	30 Sep, 2025	183,598	183,598	0.00%	$811,503.00
UBS Group AG	30 Sep, 2025	170,163	52,920	45.14%	$752,120.00
Sargent Investment Group, LLC	30 Sep, 2025	163,550	-1,350	-0.82%	$722,891.00
BROWN ADVISORY INC	30 Sep, 2025	152,443	0	0.00%	$673,798.00
BARD ASSOCIATES INC	30 Sep, 2025	143,975	-600	-0.42%	$636,370.00
D. E. Shaw & Co., Inc.	30 Sep, 2025	115,134	-226,273	-66.28%	$508,892.00
GOLDMAN SACHS GROUP INC	30 Sep, 2025	104,629	5,034	5.05%	$462,460.00
TWO SIGMA INVESTMENTS, LP	30 Sep, 2025	90,942	-8,357	-8.42%	$401,964.00
Hilltop Holdings Inc.	30 Sep, 2025	85,800	-21,500	-20.04%	$379,236.00

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